Newbie from Michigan

Hello to all,
This is my first time to post in a forum. Hope I'm dressed right! I've been buying and selling handguns for a long time and do a lot of shooting. I'm down to 4 now. But for some reason my holster collection has gone way up. My first hope is that being here, you all can help me make better selections. (I just need one more!) I carry full time. My last purchase was a S&W M&P 40 FS. An IWB or AIWB, not sure. See, I need help. Oh, I'm left handed to boot! (I draw from the correct side)
Well I've jumped in. Take care, John